EP0195998A3 - Display controller - Google Patents

Display controller Download PDF

Info

Publication number
EP0195998A3
EP0195998A3 EP86103631A EP86103631A EP0195998A3 EP 0195998 A3 EP0195998 A3 EP 0195998A3 EP 86103631 A EP86103631 A EP 86103631A EP 86103631 A EP86103631 A EP 86103631A EP 0195998 A3 EP0195998 A3 EP 0195998A3
Authority
EP
European Patent Office
Prior art keywords
display controller
controller
display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86103631A
Other versions
EP0195998A2 (en
EP0195998B1 (en
Inventor
Takatoshi Okumura
Shigemitsu Yamaoka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Corp
Original Assignee
Yamaha Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP60056604A priority Critical patent/JPH0727358B2/en
Priority to JP60056603A priority patent/JPS61214878A/en
Priority to JP56603/85 priority
Priority to JP56604/85 priority
Application filed by Yamaha Corp filed Critical Yamaha Corp
Publication of EP0195998A2 publication Critical patent/EP0195998A2/en
Publication of EP0195998A3 publication Critical patent/EP0195998A3/en
Application granted granted Critical
Publication of EP0195998B1 publication Critical patent/EP0195998B1/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/39Control of the bit-mapped memory
    • G09G5/391Resolution modifying circuits, e.g. variable screen formats
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/18Timing circuits for raster scan displays
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00Aspects of display data processing
    • G09G2340/04Changes in size, position or resolution of an image
    • G09G2340/0442Handling or displaying different aspect ratios, or changing the aspect ratio
EP19860103631 1985-03-20 1986-03-18 Display controller Expired - Lifetime EP0195998B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP60056604A JPH0727358B2 (en) 1985-03-20 1985-03-20 Image display device
JP60056603A JPS61214878A (en) 1985-03-20 1985-03-20 Picture displaying device
JP56603/85 1985-03-20
JP56604/85 1985-03-20

Publications (3)

Publication Number Publication Date
EP0195998A2 EP0195998A2 (en) 1986-10-01
EP0195998A3 true EP0195998A3 (en) 1988-10-05
EP0195998B1 EP0195998B1 (en) 1991-08-07

Family

ID=26397556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860103631 Expired - Lifetime EP0195998B1 (en) 1985-03-20 1986-03-18 Display controller

Country Status (2)

Country Link
EP (1) EP0195998B1 (en)
DE (1) DE3680693D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2609478B2 (en) * 1990-06-22 1997-05-14 三菱電機株式会社 TV image display device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303986A (en) * 1979-01-09 1981-12-01 Hakan Lans Data processing system and apparatus for color graphics display
EP0043703A2 (en) * 1980-07-03 1982-01-13 General Electric Company Raster display generating system
GB2087696A (en) * 1980-09-22 1982-05-26 Nippon Electric Co Display controlling apparatus
EP0082746A2 (en) * 1981-12-17 1983-06-29 AlliedSignal Inc. Address generator
GB2145308A (en) * 1983-08-16 1985-03-20 Ibm Display selection in a raster scan display system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303986A (en) * 1979-01-09 1981-12-01 Hakan Lans Data processing system and apparatus for color graphics display
EP0043703A2 (en) * 1980-07-03 1982-01-13 General Electric Company Raster display generating system
GB2087696A (en) * 1980-09-22 1982-05-26 Nippon Electric Co Display controlling apparatus
EP0082746A2 (en) * 1981-12-17 1983-06-29 AlliedSignal Inc. Address generator
GB2145308A (en) * 1983-08-16 1985-03-20 Ibm Display selection in a raster scan display system

Also Published As

Publication number Publication date
EP0195998A2 (en) 1986-10-01
DE3680693D1 (en) 1991-09-12
EP0195998B1 (en) 1991-08-07

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